Is “Less” actually “More”?

Due to a persisting back problem, I’ve been looking at disposing the current laptop that I carry around, and buying a lighter ultra-portable notebook. The current Acer Aspire 5570 I have, manages to have decently good spec whilst maintaining quite an impressive (<2kg) weight.

For me, replacing the current notebook has both pros and cons. Replacing means selling this off for a decent amount of money, which eases the burden on the wallet. But the cons are more. I’ve kind of modded the spec to enable me to run Photoshop and InDesign with ease, and the large (15.4″) screen also helps. A friend also did the whole color calibration thing for me, and letting this go hurts.

I’ve got to choose between the two paths. One is keeping this for those assignments which requires me to run Photoshop and InDesign, and getting something like an Eee PC for everyday use. The other is to replace this with a normal ultra-portable. I’m currently looking at the Acer 2920 Gemstone which has better spec than the one I’m using now, but with a 12.1″ screen.